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Rolamentos axiais completos

81228 - NTN

81228

Rolamento de agulha, rolamento axial de rolos cilíndricos, série 812

Documentation

Product information

CARACTERÍSTICAS TÉCNICAS
MarcaNTN
d - Bore diameter of support washer IR - WS140 mm
D - Outside diameter of support washer OR - GS200 mm
d1 - External diameter of support washer IR - WS197 mm
D1 - Bore diameter bearing washer OR - GS143 mm
T - Thrust bearing height46 mm
Dw - Rolling element diameter19 mm
Dc1 - Roller cage bore diameter140 mm
Dc - Roller cage outer diameter200 mm
B - Ring thickness13,5 mm
rs - Min fillet radius1,5 mm
Cage assembly referenceK81228
Bearing ring (inner ring) WSWS81228
Bearing ring (outer ring) GSGS81228
Ea - Rollers reference outer diameter189 mm
Eb - Rollers reference inner diameter150,1 mm
Peso4,57 kg
Cage assembly mass1,2 kg
Bearing ring (inner ring) WS mass1,69 kg
Bearing ring (outer ring) GS mass1,69 kg
Classe de precisãoP0
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DESEMPENHO
Ca - Dynamic axial load rating370 kN
C0a - Static axial load rating1280 kN
Cua - Limit axial load rating133 kN
N lim - Grease lubrication limit speed350 tr/min
N lim - Oil lubrication limit speed1400 tr/min
Tmin - Temperatura mín de operação-20 °C
Tmax - Temperatura máx de operação120 °C
RECOMENDACOES DE BARREIRA
da min - Min shoulder diameter IR188 mm
Db max - Max OR shoulder diameter150 mm
ras max - Max shaft & housing fillet radius1,5 mm